CN2805046Y - Device for preventing from error locking - Google Patents
Device for preventing from error locking Download PDFInfo
- Publication number
- CN2805046Y CN2805046Y CN 200520031152 CN200520031152U CN2805046Y CN 2805046 Y CN2805046 Y CN 2805046Y CN 200520031152 CN200520031152 CN 200520031152 CN 200520031152 U CN200520031152 U CN 200520031152U CN 2805046 Y CN2805046 Y CN 2805046Y
- Authority
- CN
- China
- Prior art keywords
- preventing
- handle
- terminal box
- meng
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a device for preventing erroneous locking, which comprises a terminal box, and handle for preventing the erroneous locking, a meng hole, a knife switch and a terminal row, wherein a pair of auxiliary contacts which can be switched on under a level condition are additionally arranged on the handle for preventing the erroneous locking of the terminal box; the two contacts are connected with a manual operating trip circuit in parallel. The utility model can effectively prevent a human casualty accident and equipment accident which are caused by the knife switched is operated with load form occurring, and can increase the safe operation coefficient of equipment and the reliability of electric supply.
Description
Technical field
The utility model relates to transformer substation switch device in a kind of power supply system, is a kind of anti-misoperation locking device specifically.
Background technology
Chinese in the past Nanyang once produced a kind of anti-misoperation locking device with abundant electromechanical Co., Ltd, its switch matches with disconnecting link, power supply is run well, but in actual applications, have major defect, promptly the anti-misoperation locking handle has only a docking point in the terminal box, as shown in Figure 1, vertically state is connected the closing circuit power connection down, for example under the situation that does not disconnect hole 1 switch in the Meng, with 1
#Key also can be screwed onto handle horizontal dial-out 2
#Key carries out next step operation, that is inserts the anti-lock of hole 1 first mistake in the Meng, draws back hole 1 first disconnecting link in the Meng, thereby can cause on-load broaching tool lock serious accident.
Summary of the invention
The utility model is intended to provide a kind of anti-misoperation locking device, and it can prevent that major accident and equipment breakdown that on-load broaching tool lock causes from taking place, and improves the safe operation coefficient of equipment and the reliability of power supply.Task of the present utility model is finished like this: a kind of anti-misoperation locking device, and it includes terminal box, anti-error lock handle hand, Meng hole, disconnecting link, terminal board; Increasing the auxiliary contact that can connect under a pair of level on the terminal box anti-misoperation locking handle, these two contacts are connected in parallel in the manual operation trip(ping) circuit.The utility model can prevent the human casualty accident that on-load broaching tool lock causes and the generation of equipment breakdown effectively, can improve the safe operation coefficient of equipment and the reliability of power supply.
Description of drawings
Fig. 1 is former anti-misoperation locking device secondary circuit simple diagram;
Fig. 2 is a secondary circuit simple diagram of the present utility model.
Embodiment
The mode of connection of the present utility model as shown in Figure 2, promptly it is the auxiliary contact 2 and 4 that can connect under two levels increasing on the terminal box anti-misoperation locking handle, these two auxiliary contacts 2 and 4 are connected in parallel on manual operation and trip on the DL loop.
During concrete operations, one of a connecting line is terminated on the terminal board on operation positive supply ten KM that come from master-control room, the other end is connected on the terminal box anti-misoperation locking handle; One of another root connecting line is terminated on the terminal board in the trip(ping) circuit 133 of getting on to switching mechanism on the contact 2, and another still is connected on the terminal box anti-misoperation locking handle contact 4.Like this, even disconnect hole 1 switch in the Meng under normal operation, handle has been screwed onto this docking point of horizontal level has connected, though two ends are all charged, switching mechanism often leaves auxiliary contact DL disconnection and can not form the loop.Proceed next step operation usefulness, 1 under the situation that disconnects hole 1 switch in the Meng if be provided with at in-house operation
#Insert terminal box anti-misoperation locking handle with 1
#Keyhole is screwed onto level with handle, at this moment a pair of auxiliary contact that increases newly is connected trip(ping) circuit, make the reliable tripping operation of hole 1 switch in the Meng avoid the on-load misoperation, in transmission process, draw back 1 ground, hole in the Meng, push to 1 north, hole in the Meng, push to hole 1 first in the Meng, handle is screwed to vertical closing position, connects closing circuit and disconnect horizontal trip position, 1
#Key is kept in the center just can send the electricity operation.
Claims (1)
1, a kind of anti-misoperation locking device, it includes terminal box, anti-error lock handle hand, Meng hole, disconnecting link, terminal board; It is characterized in that: increasing the auxiliary contact that can connect under a pair of level on the terminal box anti-misoperation locking handle, these two contacts are connected in parallel in the manual operation trip(ping) circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520031152 CN2805046Y (en) | 2005-06-30 | 2005-06-30 | Device for preventing from error locking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520031152 CN2805046Y (en) | 2005-06-30 | 2005-06-30 | Device for preventing from error locking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2805046Y true CN2805046Y (en) | 2006-08-09 |
Family
ID=36910331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520031152 Expired - Fee Related CN2805046Y (en) | 2005-06-30 | 2005-06-30 | Device for preventing from error locking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2805046Y (en) |
-
2005
- 2005-06-30 CN CN 200520031152 patent/CN2805046Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |